Sewer-vent cap.



M. L. McGUlRE.

SEWER VENT CAP.

APPLICATION FILED SEPT. 1B. 1913.

Patented Feb. 13, 1917.

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MICHAEL L. MCGUIRE, OF SYRACUSE, NEW YORK.

SEWER-VENT CAP.

To aZZ whom it may concern:

Be it known that I, h/IICHAEL L. MCGUIRE, citizen of the United States, and a resident of Syracuse, in the county of Onondaga and State of New York, have invented a certain new and useful Sewer-Vent Cap, of which the following is a specification;

This invention has for its object the production of a sewer vent cap which is par ticularly simple in construction and highly ellicient and durable in use, and it consists in the novel features of construction hereinafter set forth and claimed.

In describing this invention reference is had to the accompanying drawings in which like characters designate corresponding parts in all the views.

Figure 1 is a vertical sectional view, partly in elevation, of this sewer vent cap, the contiguous portion of the pipe on which the vent is mounted being also shown in section.

Fig. 2 is an inner face view of the cap.

Fig. 3 is a plan view, on a reduced scale, of the blank from which the body of the cap is formed.

Sewer vent caps have heretofore been formed of cast iron and such caps are easily fractura-ble as when struck by wagon wheels, lawn mowers and by stones thrown by boys, so that the pipe is open and sticks and stones and other obstructions can be placed therein. It is a Well known fact that the life of these cast iron caps is comparatively short as they are liable to be broken at any time. The tops of the caps have heretofore been held in position by screws or bolts located on opposite sides of the body and cap and extending vertically through lugs on the body and on the top of the cap, or have been held in position by set screws which easily become loosened.

My sewer vent cap obviates all the undesirable features of the vent capheretofore in use, and includes a tubular body formed up out of a sheet metal blank, a top of malleable iron at the upper end of the body and having means extending below the upper edge of the body and means extending transversely through the body and the.

former means for holding the top and the body together. 7

1 is the tubular body, and 2 is the top, the body being formed from a blank 3 having holes 4 therein near its upper edge clestsgmed Specification of Letters Patent.

i body is order to resist Patented Feb. 13, 191?.

Application filed September 18, 1913. Serial No; 790,500.

to come diametrically opposite each other when the blank is rolled into cylindrical form, the body also being formed with holes 5 n its end margins, the holes 5 of opposite margins being designed to be brought into allnement for receiving fastening means as rivets 6, when the body is formed. The also formed with an additional opening or hole 7 near its lower edge for the purpose heretofore described.

The top 2 is hooded, that is, it is formed with its side margin 8 bent downwardly and overhanging the body 1. The means on the top extending below the upper'edgc of the body depends into the body and has a perforation arranged to come intoalinement with the holes 4, this means being usually a lug 9 depending centrally from the cap into the body 1 and having a perforation 10 near its lower end.

The top 2 is also formed with a plurality of lugs arranged to engage the upper edge of the body 1, these lugs having shoulders for engaging the inner face of the body in crushing strain on the body and also the strain due to the action of the fastening member, which is a bolt 11 extending diametrically through the body 1 and through the holes 4 thereof and the perforation 10 of the lug 9 and threading into a nut 12.

13 are the lugs engaging the. upper edge of the body 1, these lugs depending from, the upper wall of the. top and projecting inwardly from the hooded margin 8 and being formed with shoulderslt which engage the inner face of the body 1. be either formed of sheet metal and afterward malleableized, or may be cast into the desired form and afterward malleableized.

In use, the body is set into the bell 15 of the pipe 16 of the sewer, and calking, as cement 17, pressed into the bell around pipe. In repairing an old cap in which the top andthe upper portion of, or a fragment of the body of said old cap has'been' cracked The top 2 may 7 the r V off, the top of my cap is removedand the body of my cap, which is of larger diameter than those now used, is placed over' the body of'the old fractured cap forming a sleeve thereon, and calking is filled between be taken to pack the same in order that they may not be broken in transit. My caps, owing to their construction and to the fact that they are unbreakable, can be shipped without packing or crating by merely threading a-wire through the holes-7 of the number of caps to be shipped. These holes 7 are arranged so that they come within the bell or hub 15 on the pipe 16.

My cap is particularly advantageous in that it is simple and economical in construction, is onlneakahle, is not easily disassembled owing to the location and arrangement 01? its fastening member, and is proof against the insertion of sticks and stones and other obstructions into the same.

What I claim is 1. A. sewer Vent cap comprising a tubular body, a hooded top at the upper end of the body, the top being formed with lugs on its lower face, the lugs being formed with shoulders for engaging the inner and outer faces of the tubular body, and means for Copies of this patent may be obtained for five cents each, by addressing the securing the top to the body, substantially as and for the purpose described.

2. A sewer Vent cap comprising a tubular body, a top at the upper end of the body, the top being formed with lugs on its inner face, the lugs being formed with shoulders for engaging the inner and outer faces of the tubular body, the top being also formed with a lug depending centrally into the body, a bolt extending transversely through the body and the lug, and a nut screwing on the bolt against the periphery o t the body, substantially as and for the purpose described.

In testimony whereof, I have hereunto signed my name, in the presence of two attesting witnesses, at Syracuse, in the county of Onondaga, in the State of New York, this 15th day of Sept, 1913.

MICHAEL L. MCGUIRE.

Witnesses:

S. DAVIS, F. B. PIOKARD.

Commissioner of Patents,

Washington, D. G. 

